1 files changed, 123 insertions, 0 deletions
diff --git a/tests/rustdoc-js-std/parser-weird-queries.js b/tests/rustdoc-js-std/parser-weird-queries.js
new file mode 100644
index 00000000000..a3d85aeca5e
--- /dev/null
+++ b/tests/rustdoc-js-std/parser-weird-queries.js
@@ -0,0 +1,123 @@
+// This test is mostly to check that the parser still kinda outputs something
+// (and doesn't enter an infinite loop!) even though the query is completely
+// invalid.
+const QUERY = [
+    'a b',
+    'a   b',
+    'a,b(c)',
+    'aaa,a',
+    ',,,,',
+    'mod    :',
+    'mod\t:',
+];
+
+const PARSED = [
+    {
+        elems: [
+            {
+                name: "a",
+                fullPath: ["a"],
+                pathWithoutLast: [],
+                pathLast: "a",
+                generics: [],
+            },
+            {
+                name: "b",
+                fullPath: ["b"],
+                pathWithoutLast: [],
+                pathLast: "b",
+                generics: [],
+            },
+        ],
+        foundElems: 2,
+        original: "a b",
+        returned: [],
+        typeFilter: -1,
+        userQuery: "a b",
+        error: null,
+    },
+    {
+        elems: [
+            {
+                name: "a",
+                fullPath: ["a"],
+                pathWithoutLast: [],
+                pathLast: "a",
+                generics: [],
+            },
+            {
+                name: "b",
+                fullPath: ["b"],
+                pathWithoutLast: [],
+                pathLast: "b",
+                generics: [],
+            },
+        ],
+        foundElems: 2,
+        original: "a   b",
+        returned: [],
+        typeFilter: -1,
+        userQuery: "a   b",
+        error: null,
+    },
+    {
+        elems: [],
+        foundElems: 0,
+        original: "a,b(c)",
+        returned: [],
+        typeFilter: -1,
+        userQuery: "a,b(c)",
+        error: "Unexpected `(`",
+    },
+    {
+        elems: [
+            {
+                name: "aaa",
+                fullPath: ["aaa"],
+                pathWithoutLast: [],
+                pathLast: "aaa",
+                generics: [],
+            },
+            {
+                name: "a",
+                fullPath: ["a"],
+                pathWithoutLast: [],
+                pathLast: "a",
+                generics: [],
+            },
+        ],
+        foundElems: 2,
+        original: "aaa,a",
+        returned: [],
+        typeFilter: -1,
+        userQuery: "aaa,a",
+        error: null,
+    },
+    {
+        elems: [],
+        foundElems: 0,
+        original: ",,,,",
+        returned: [],
+        typeFilter: -1,
+        userQuery: ",,,,",
+        error: null,
+    },
+    {
+        elems: [],
+        foundElems: 0,
+        original: 'mod    :',
+        returned: [],
+        typeFilter: 0,
+        userQuery: 'mod    :',
+        error: null,
+    },
+    {
+        elems: [],
+        foundElems: 0,
+        original: 'mod\t:',
+        returned: [],
+        typeFilter: 0,
+        userQuery: 'mod\t:',
+        error: null,
+    },
+];